Read LG 47LX9500-UA (CHASSIS:LA02R) Service Manual online
20. Trouble shooting - No audio (Head phone audio out)
Check Head phone Cable
for damage or open conductor
ok
ok
Check Earphone AMP Mute
(Pin 13)
Check Audio OSD
(Audio OSD active or inactive mode?)
Check R1058 & R900, JK300
No(active)
Check Earphone output
(Pin 5, 16)
ok
No
Replace IC300 TPA613A2
ok
Follow procedure & refer to Audio signal block
Diagram
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